Home / 1,912,633.22-2,639,433.84-1,053,191.43

Finding the Fourth Proportional to 1,912,633.22, 2,639,433.84 and 1,053,191.43

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Solution

The fourth proportional to 1,912,633.22, 2,639,433.84 and 1,053,191.43 is: 1,453,404.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,633.22 : 2,639,433.84 = 1,053,191.43 : x
  2. Step 2: Convert to fraction form
    1,912,633.22/2,639,433.84 = 1,053,191.43/x
  3. Step 3: Cross multiply
    1,912,633.22x = 2,639,433.84 × 1,053,191.43
  4. Step 4: Simplify right side
    1,912,633.22x = 2,779,829,100,339.99
  5. Step 5: Solve for x
    x = 2,779,829,100,339.99/1,912,633.22
  6. Step 6: Final answer
    x = 1,453,404.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.